Africa from the air: Martin Harvey's aerial photos of landscapes and wildlife

An aerial view of Nabiyotum Crater in Lake Turkana - the world's largest
desert lake and the world's largest alkaline lake - in the Great Rift Valley
in Kenya. Photographer Martin Harvey said: "These photographs were taken
while accompanying clients on exclusive helicopter safaris in Namibia,
Botswana and Kenya. I take top business people and entrepreneurs.